*2026/01/16 10:37:43.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 23:20:32.000 END TIME : UTC 2025/01/21 23:20:47.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 79 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.56 2 Depth metres 0.15 23.53 3 Temperature 'deg C (ITS90)' 8.746 9.147 4 Conductivity S/m 2.82421 2.9799 5 Conductance:Specific S/m 4.18181 4.36332 6 Salinity PSS-78 26.01 27.29 7 Speed:Sound m/s 1474.3 1477.69 8 Density kg/m^3 1020.121 1021.177 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 11 LATITUDE : 49 15.89330 N ! (deg min) LONGITUDE : 125 51.86550 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_232032 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 79 79 MERGEHDR 1.3 2026/01/16 10:35:38 79 79 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 79 79 CALIB 12.1 2026/01/16 10:37:09 79 79 CLEAN 5.3 2026/01/16 10:37:43 79 79 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 10:37:42 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 8.768 2.82421 4.18181 26.01 1474.30 1020.121 0.45 0.45 8.808 2.84139 4.20227 26.15 1474.64 1020.230 0.75 0.75 8.821 2.84081 4.19979 26.14 1474.67 1020.217 1.05 1.05 8.853 2.84271 4.19858 26.13 1474.79 1020.210 1.35 1.35 8.908 2.85967 4.21676 26.26 1475.17 1020.306 1.65 1.65 8.923 2.86799 4.22714 26.34 1475.32 1020.362 1.95 1.95 8.915 2.86768 4.22769 26.34 1475.30 1020.367 2.25 2.25 8.909 2.86765 4.22850 26.34 1475.28 1020.373 2.55 2.55 8.893 2.86775 4.23064 26.36 1475.24 1020.387 2.85 2.85 8.881 2.86728 4.23135 26.36 1475.21 1020.392 3.15 3.15 8.872 2.86677 4.23172 26.36 1475.18 1020.396 3.45 3.45 8.864 2.86558 4.23107 26.36 1475.15 1020.394 3.75 3.75 8.844 2.86158 4.22763 26.33 1475.04 1020.378 4.05 4.05 8.818 2.86007 4.22858 26.33 1474.96 1020.386 4.35 4.35 8.787 2.85570 4.22601 26.31 1474.82 1020.375 4.65 4.65 8.767 2.85431 4.22648 26.31 1474.75 1020.379 4.95 4.95 8.756 2.85413 4.22766 26.32 1474.72 1020.388 5.25 5.25 8.748 2.85466 4.22937 26.33 1474.71 1020.398 5.55 5.54 8.746 2.85463 4.22962 26.33 1474.70 1020.401 5.85 5.84 8.747 2.85702 4.23301 26.35 1474.74 1020.421 6.15 6.14 8.757 2.85763 4.23269 26.35 1474.78 1020.420 6.45 6.44 8.771 2.85999 4.23443 26.37 1474.86 1020.430 6.75 6.74 8.783 2.86010 4.23304 26.36 1474.90 1020.423 7.05 7.04 8.791 2.86172 4.23443 26.37 1474.95 1020.431 7.35 7.34 8.798 2.86287 4.23528 26.38 1474.98 1020.437 7.65 7.64 8.804 2.86323 4.23506 26.37 1475.01 1020.437 7.95 7.94 8.808 2.86394 4.23564 26.38 1475.04 1020.441 8.25 8.24 8.811 2.86474 4.23639 26.38 1475.06 1020.446 8.55 8.54 8.816 2.86571 4.23717 26.39 1475.09 1020.451 8.85 8.84 8.820 2.86641 4.23771 26.39 1475.12 1020.455 9.15 9.14 8.823 2.86653 4.23753 26.39 1475.13 1020.455 9.45 9.44 8.825 2.86574 4.23613 26.38 1475.13 1020.449 9.75 9.74 8.827 2.86629 4.23671 26.39 1475.15 1020.453 10.05 10.04 8.828 2.86627 4.23655 26.39 1475.16 1020.454 10.35 10.34 8.830 2.86626 4.23627 26.39 1475.17 1020.453 10.65 10.64 8.834 2.86689 4.23674 26.39 1475.19 1020.457 10.95 10.94 8.837 2.86731 4.23693 26.39 1475.21 1020.459 11.25 11.24 8.843 2.86784 4.23701 26.39 1475.24 1020.461 11.55 11.54 8.849 2.86824 4.23681 26.39 1475.27 1020.461 11.85 11.84 8.855 2.86979 4.23838 26.40 1475.31 1020.470 12.15 12.14 8.862 2.86999 4.23782 26.40 1475.33 1020.468 12.45 12.44 8.878 2.87049 4.23651 26.39 1475.39 1020.461 12.75 12.74 8.899 2.87167 4.23565 26.39 1475.47 1020.457 13.05 13.04 8.919 2.87421 4.23692 26.40 1475.56 1020.464 13.35 13.34 8.944 2.88220 4.24555 26.46 1475.74 1020.511 13.65 13.64 8.971 2.88456 4.24566 26.46 1475.85 1020.511 13.95 13.94 8.997 2.88769 4.24703 26.48 1475.97 1020.518 14.25 14.24 9.022 2.89182 4.24991 26.50 1476.10 1020.534 14.55 14.54 9.044 2.89399 4.25032 26.50 1476.19 1020.536 14.85 14.83 9.062 2.89419 4.24848 26.49 1476.25 1020.527 15.15 15.13 9.076 2.89545 4.24847 26.50 1476.31 1020.527 15.45 15.43 9.094 2.90090 4.25432 26.54 1476.43 1020.559 15.75 15.73 9.106 2.90554 4.25960 26.58 1476.53 1020.588 16.05 16.03 9.113 2.90909 4.26391 26.61 1476.60 1020.612 16.35 16.33 9.123 2.91078 4.26508 26.61 1476.65 1020.619 16.65 16.63 9.129 2.91489 4.27033 26.65 1476.73 1020.648 16.95 16.93 9.133 2.91786 4.27431 26.68 1476.78 1020.671 17.25 17.23 9.139 2.92053 4.27744 26.70 1476.83 1020.688 17.55 17.53 9.141 2.92323 4.28113 26.73 1476.88 1020.709 17.85 17.83 9.141 2.92643 4.28581 26.76 1476.92 1020.736 18.15 18.13 9.139 2.92935 4.29036 26.79 1476.95 1020.762 18.45 18.43 9.132 2.93103 4.29363 26.81 1476.96 1020.781 18.75 18.73 9.129 2.93217 4.29568 26.83 1476.97 1020.793 19.05 19.03 9.124 2.93736 4.30395 26.88 1477.03 1020.839 19.35 19.33 9.120 2.94092 4.30964 26.92 1477.06 1020.871 19.65 19.63 9.117 2.94156 4.31097 26.93 1477.07 1020.880 19.95 19.93 9.114 2.94265 4.31291 26.94 1477.08 1020.892 20.25 20.23 9.112 2.94589 4.31796 26.98 1477.12 1020.920 20.55 20.53 9.111 2.94767 4.32074 26.99 1477.14 1020.937 20.85 20.83 9.114 2.95068 4.32478 27.02 1477.19 1020.960 21.15 21.13 9.115 2.95401 4.32951 27.06 1477.24 1020.986 21.45 21.43 9.109 2.95618 4.33340 27.08 1477.25 1021.009 21.75 21.73 9.112 2.95763 4.33519 27.09 1477.28 1021.020 22.05 22.02 9.118 2.95954 4.33727 27.11 1477.33 1021.032 22.35 22.32 9.121 2.96081 4.33870 27.12 1477.36 1021.041 22.65 22.62 9.119 2.96301 4.34211 27.14 1477.39 1021.060 22.95 22.92 9.128 2.96887 4.34957 27.19 1477.49 1021.101 23.25 23.22 9.139 2.97904 4.36313 27.29 1477.65 1021.175 23.56 23.53 9.147 2.97990 4.36332 27.29 1477.69 1021.177